Table 1
Sabine Pass Jetties
Sabine-Neches Waterway, Texas
Date(
Construction and Rehabilitation History
Two jetties were constructed using multiple layers of fascine
mattress and stone ballast. Typical mattress widths varied from a
1900
minimum of 15 ft on the uppermost layer to maximums of 60 to 120 ft
on the lowermost (foundation) layer. Both jetties were extended
several times reaching total lengths of 25,000 and 22,000 ft for the
foundation course of the east and west jetties, respectively. The
jetties were subsequently raised to about
mean high water (mhw)
by addition of riprap stone and a cover layer of granite blocks.
Individual cover stones were probably several tons in size (the 1891
contract required 1 - to 4-ton stone). By 1900 raised sections of the
east and west jetties totaled 21,820 and 15,560 ft in length,
respectively. Subsidence of the jetties was significant, caused by a
combination of scour and consolidation of the underlying soil and
consolidation and deterioration of the fascine mats. Portions of the
jetties (usually at their outer ends) were damaged or destroyed
during passing storms, resulting in repair or reconstruction of these
sections. Approximately 8,000,000sq yd of fascine mats and 776,000
tons of stone were used in jetty construction for a total cost of
,541,900.
The east jetty was repaired and raised with additional riprap stone.
A total of
About 19,800 ft of its length was built up to
ft
1909
206,750 tons of stone was placed at a total cost of 4,500.
The west jetty was capped with concrete from its landward end (at
191 1
to
and
granite blocks were transferred
sta
from the west jetty to the east jetty. A total of 60,000 tons of
stone and 11,580
yd of concrete was placed on the west jetty.
Total cost was 5,000.
The east jetty was repaired from sta
to sta
using
48,200 tons of stone, and west jetty repairs from sta
to
1913
required 20,400 tons of stone. Total repair cost was
sta
8,
The east jetty was extended and raised using 16,750 sq yd of fascine
mats and 293,400 tons of stone. The jetty had been raised to
ft
1918
In 1916 repairs
mean low gulf (mlg) from sta
to sta
were made to the west jetty using 21,700 tons of stone. About
of the west jetty was at
mlg, and 2,200
at its
15,900
ft mlg. Total cost of the extension and jetty
seaward end was at
repairs was
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,152,100.
(Continued)
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